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NSN 4820-01-344-8999, 4820013448999
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 013448999
Codification Country
United States
Item Name Code
INC 05488
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 4820-01-344-8999

National Stock Number (NSN) 4820-01-344-8999, or NIIN 013448999, (valve,safety relief) was assigned September 8, 1991 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 5 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of May 22, 2018. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7MC18V7065, SPE7MC18V7065. The total value of the awarded contracts has been US$ 249,984.00.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 10, 2014, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 05488. [A VALVE DESIGNED TO AUTOMATICALLY RELEASE EXCESSIVE PRESSURES. IT IS ACTUATED BY STATIC PRESSURE UPSTREAM OF THE VALVE AND IS USED AS A SAFETY VALVE OR RELIEF VALVE, AND MAY BE SET TO CLOSE AT A PREDETERMINED PRESSURE. IT IS NOT DESIGNED FOR REGULATION OF CONTINUOUSLY FLUCTUATING LOADS. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. EXCLUDES:VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820013448999 does not contain precious metals.

This NSN is associated to Schedule B 8481400000: safety or relief valves. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.

This information was last updated on .


Technical Characteristics

DISK LOADING METHOD
(ADSU) SPRING
ADJUSTABLE PRESSURE RANGE
(CQCY) +110.0 TO 160.0 POUNDS PER SQUARE INCH
BONNET TYPE
(ADSR) INSIDE SPRING
BONNET ATTACHMENT METHOD
(ADST) BOLTED
CONNECTION STYLE
(AHNC) SOCKET ALL ENDS
CONNECTION TYPE
(AWLS) UNTHREADED INTERNAL PIPE ALL ENDS
FURNISHED ITEMS AND QUANTITY
(TMQY) 1 LEVER
FLOW CONTROL DEVICE
(ADQU) DISK
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM-B61 ASSN STD SINGLE MATERIAL RESPONSE BODYASTM-B164 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICEASTM-B164 ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIAL
(MATT) COPPER ALLOY BODYNICKEL ALLOY FLOW CONTROL DEVICENICKEL ALLOY SEATSTEEL COMP 316 STEM
MAXIMUM OPERATING PRESSURE
(CQGM) 400.0 POUNDS PER SQUARE INCH 1ST RESPONSE200.0 POUNDS PER SQUARE INCH 2ND RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 150.0 DEG FAHRENHEIT 1ST RESPONSE425.0 DEG FAHRENHEIT 2ND RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) AIR 1ST RESPONSESTEAM 2ND RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED
(AAAR) 1.000 INCHES ALL ENDS
SPECIAL FEATURES
(FEAT) INCL ADJUSTING RING
VALVE OPERATION METHOD
(AQLR) MANUAL
STYLE DESIGNATOR
(STYL) ANGLE
ADJUSTABLE PRESSURE RANGE
(CQCY) +110.0/+160.0 POUNDS PER SQUARE INCH
STYLE DESIGNATOR
(STYL) ERR-090
CONNECTION STYLE
(AHNC) SOCKET ERR-100

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